Home / 38,340.78-52,910.25-21,573.78

Finding the Fourth Proportional to 38,340.78, 52,910.25 and 21,573.78

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Solution

The fourth proportional to 38,340.78, 52,910.25 and 21,573.78 is: 29,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,340.78 : 52,910.25 = 21,573.78 : x
  2. Step 2: Convert to fraction form
    38,340.78/52,910.25 = 21,573.78/x
  3. Step 3: Cross multiply
    38,340.78x = 52,910.25 × 21,573.78
  4. Step 4: Simplify right side
    38,340.78x = 1,141,474,093.25
  5. Step 5: Solve for x
    x = 1,141,474,093.25/38,340.78
  6. Step 6: Final answer
    x = 29,771.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.